Home / 19,744.20-27,247.32-11,787.12

Finding the Fourth Proportional to 19,744.20, 27,247.32 and 11,787.12

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Solution

The fourth proportional to 19,744.20, 27,247.32 and 11,787.12 is: 16,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,744.20 : 27,247.32 = 11,787.12 : x
  2. Step 2: Convert to fraction form
    19,744.20/27,247.32 = 11,787.12/x
  3. Step 3: Cross multiply
    19,744.20x = 27,247.32 × 11,787.12
  4. Step 4: Simplify right side
    19,744.20x = 321,167,430.52
  5. Step 5: Solve for x
    x = 321,167,430.52/19,744.20
  6. Step 6: Final answer
    x = 16,266.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.